After over thirty years of distributed computing, debugging distributed 
applications is still regarded as a difficult task. While it could
be argued that this condition stems from the complexity of distributed
executions, the fast pace of evolution witnessed with distributed com-
puting technologies has also played its role by shortening the life-span
of many useful debugging tools. In this paper we present an extensible
Eclipse-based tool which brings distributed threads and symbolic de-
buggers together, resulting in a simple and useful debugging aid. This
extensible tool is based on a technique that is supported by elements that
are common to synchronous-call middleware implementations, making it
a suitable candidate for surviving technology evolution.